Schedules of Investments (Unaudited) - Investments (Details)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	May 21, 2024 USD ($)
Ether	1,768,573	1,191,766	1,071,415	3,031	0
Investment in ether, at cost	$ 5,242,898,137	$ 3,887,465,641	$ 3,543,902,275	$ 10,000,000	$ 0
Ether fair value	4,396,336,194		3,571,669,777
Liabilities in Excess of Other Assets	(540,386)		(407,610)
Net Assets	$ 4,395,795,808	$ 2,186,390,619	$ 3,571,262,167	$ 10,589,875	$ 0